2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/8396The preliminary analysis of the optical data of SN1999cw show that this object has the photometric and spectroscopic behavior of a Type Ia supernova similar to SN1991T, reaching an apparent magnitude at maximum B(max)=14.30 and a Delta m_{15}(B)=0.94.to appear in "1604-2004 Supernovae as Cosmological Lighthouses" (Padova, Italy, June 16-19, 2004) [2 pages, 2 figures]Astrophysicstext